In the police station I saw the man from ________ room the thief had stolen the TV set.
一 How do you like the scarf?
一 Very much. It feels .
宽宽的____
A.眼睛
亮晶晶的____
B.翅膀
红润润的____
C.荷叶儿
绿油油的____
D.脸蛋儿
已知:①室温下KspMg(OH)2=6.0×10﹣12.②在溶液中,Fe2+、Fe3+、Al3+从开始沉淀到沉淀完全的pH范围依次为7.1~9.6、2.0~3.7、3.1~4.7.③三种化合物的溶解度(S)随温度变化的曲线如图所示.
为防止伤害性事故的发生,下列做法不正确的是( )